{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["place of birth", "place of death", "education degree", "education institution"], "input": "At the time of his death from pneumonia in Denton County / Frisco city , Texas, he was chairman and CEO of Central Lighting Co.based in Irvine, CA, Chairman of the Board of American Homestar Corp. in Houston, Texas and Chairman of the Board of Starpower Home Entertainment Stores of Dallas, TX. He is survived by his widow Patti Nathan Morton and four sons, Jason, Ryan, Logan, and Chase, stepdaughter, Amy Richardson and step-grandson, Grant Richardson. Big-box store is a term of art in the retail trade that refers to a style of retail store, and by extension to the company behind the store. The terms superstore, megastore, and supercenter also refer to these retail establishments."}
{"place of birth": [], "place of death": [{"subject": "Nathan Morton", "object": "Denton County / Frisco city"}], "education degree": [], "education institution": []}